June 4, 1925. In Laboratory 
Will stand quite a lot of poking to antennules, which are white just color 
of coral sand. Back is black speckled, so that when exposed looks like white 
sand and black interstices. If touched from behind, rotates backward; in much 
bothered cases making a complete revolution so that it heads other way. Seems 
almost, if not quite, incapable of going forward; sickle-shaped dactylar terminal 
joints of appendages all working in rotation and alternation quickly bury 
animal. Often just antennular flagella only exposed; and after little space 
with eyes and antennular peducle sticking out. Shifted position twice in 45 
minutes. 
Fooled with animal again. No matter what I do, will not go forward. 
HBXBffldctBrxxksi It certainly looks as though it is incapable of forward move¬ 
ment. For a full minute poked and shoved and put glass rod on tip of antennule, 
twirled it on the point. Did not respond, but as soon as I took hold with 
forceps (but as long as I didn't pull, didn't mind) and gave a pull, it backed 
up and pulled entire body back and under. When the antennules lie on ground, 
look just like straight edge of broken shell. 
Four minutes of nine pulled under. At 11:15 still couldn't find it; still 
so at 2:00. Found antennules out after return about 4:30 from collecting. 
June 13 §ic 
Yesterday I noticed particularly that the animal used a sort of circular 
motion in trying to dig in; hadn't noticed it before. Maybe used this method 
because weaker. Other one died three days ago. Would spin itself more or less 
like a wobbly top on hinder end in getting under sand, especially where thin 
over glass bottom. 
